The world's smallest model car

This electron microscope photograph, published by the Vienna University of Technology, shows a nano-scale model of a Formula One racing car, created using a 3D printing technique being developed there. The BBC has more on the new technique.

It’s worth noting that this model is *very large* by many standards of nanofabrication. Interpreting the scale bar there and the numbers in the article, the resolution on this printing technique is between 1 to 2 µm. Some commonly-used fabrication methods can build structures with resolution of < 20 nm.